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Common lifestyle factors contributing to deficiency include: High levels of stress or anxiety Strenuous exercise routines without adequate nutrition Frequent travel or irregular meal patterns If youre encountering fatigue, brain fog, or prolonged physical or mental exhaustion, it may be time to check your B12 levels
Dosing for pernicious anemia or food-bound cobalamin malabsorption is 1000 mcg/day
Deficiency develops gradually, as the body stores approximately 2-5 mg of B12 in the liver, which can sustain normal function for several years even with inadequate intake or absorption
The right vaccine for you depends on factors like age, health conditions, and risk level
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